A carpenter charged Rs. 2500 for making a bed. The cost of materials used is Rs. 1100 and the labour charges are Rs. 200/hr. For how many hours did the carpenter work

Solution:

A carpenter charged Rs. 2500 for making a bed.

The cost of material used is Rs.1100

The labour charges are Rs. 200/hr

We have to find the number of hours the carpenter worked.

Let the number of hours carpenter worked be x hours.

Total labour charge = Rs. 200x

Total amount charged for bed = material cost + total labour cost

2500 = 1100 + 200x

By transposing,

200x = 2500 - 1100

200x = 1400

x = 1400/200

x = 14/2

x = 7

Therefore, the carpenter has worked for 7 hours.

✦ Try This: A carpenter charged Rs. 3500 for making a bed. The cost of materials used is Rs. 1300 and the labour charges are Rs. 310/hr. For how many hours did the carpenter work?

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 2

NCERT Exemplar Class 8 Maths Chapter 4 Problem 109

A carpenter charged Rs. 2500 for making a bed. The cost of materials used is Rs. 1100 and the labour charges are Rs. 200/hr. For how many hours did the carpenter work

Summary:

A carpenter charged Rs. 2500 for making a bed. The cost of materials used is Rs. 1100 and the labour charges are Rs. 200/hr. The carpenter has worked for 7 hours to complete making the bed.

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